Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Electrical & Vacuum Release Switches
These switches are used to disengage cruise control whenever clutch or brake pedals are activated. An electrical release switch is mounted on brake and clutch pedal (M/T) brackets. Switches disengage system electrically if either pedal is depressed. See Fig 1 .
A vacuum release valve is also mounted on brake pedal bracket. This valve vents trapped vacuum in servo to atmosphere as brake pedal is depressed, allowing throttle to quickly return to idle position. This is done by routing a separate hose directly to servo from normally closed vacuum switch. See Fig 1 .
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.